Small Data Transmission Routing

2. The method according to claim 1, wherein the transport layer information comprises at least one of an F1-U transport layer address and an F1-U general packet radio service tunneling protocol tunnel endpoint.

3. The method according to claim 1, wherein the context information is a radio link control context of the user equipment stored in the second network node.

4. The method according to claim 1, wherein the data packet is an uplink small data transmission packet.

5. The method according to claim 1, wherein the initial request message originates from the user equipment.

6. The method according to claim 1, further comprising transmitting a response message to the second element in response to receiving the context setup request message.

7. The method according to claim 1, wherein the initial request message comprises an inactive radio network temporary identifier.

10. The apparatus according to claim 9, wherein the transport layer information comprises at least one of an F1-U transport layer address and an F1-U general packet radio service tunneling protocol tunnel endpoint.

11. The apparatus according to claim 9, wherein the context information is a radio link control context of the user equipment stored in the second network node.

12. The apparatus according to claim 9, wherein the data packet is an uplink small data transmission packet.

13. The apparatus according to claim 9, wherein the initial request message originates from the user equipment.

14. The apparatus according to claim 9, wherein the apparatus is further caused to transmit a response message to the second element in response to receiving the context setup request message.

15. The apparatus according to claim 9, wherein the initial request message comprises an inactive radio network temporary identifier.

18. The apparatus according to claim 17, wherein the transport layer information comprises at least one of an F1-U transport layer address and an F1-U general packet radio service tunneling protocol tunnel endpoint.

19. The apparatus according to claim 17, wherein the context information is a radio link control context of the user equipment.

20. The apparatus according to claim 17, wherein the response message is one of a retrieve user equipment context response message or a retrieve user equipment context failure message.